Rebuilding a Building on a Courtyard: The Planning Regulations Apply to All (Cass. 1976)

You have bought an old building in Bastia, in the Citadelle district, with an internal courtyard. You dream of rebuilding it to create modern apartments. But be careful: if your neighbours have bedrooms or living rooms overlooking that courtyard, you cannot do whatever you want. The local planning regulations impose minimum dimensions for residential courtyards (for example, a surface area of at least 30 m² and a width of 6 metres). And this applies even if your project is a like-for-like reconstruction? This is precisely the question decided by the Court of Cassation in a judgment of 3 March 1976.

This decision, often overlooked, has considerable practical significance for property owners and developers. It reminds us that the right to rebuild is not absolute: it must be balanced against the rights of neighbours and the planning rules in force. So, what exactly does this judgment say? And how should it be applied today, whether you are in Borgo or elsewhere?

In short, the Court of Cassation upheld the refusal of planning permission for a reconstruction that did not comply with courtyard standards, on the ground that the neighbouring buildings existed before the regulations came into force and their occupants enjoyed views over the courtyard. In other words, the owner must adapt his project to preserve the quality of life of the neighbours. A decision that echoes many local situations.

The facts: a story like many that happen every day

Imagine the scene: in Paris, an owner (let's call him Mr D.) owns a building overlooking a courtyard. In 1967, a new master plan (the PUD) came into force, imposing precise dimensions for residential courtyards (in particular a minimum surface area and a limited height). Mr D. decides to rebuild his building, but his project does not comply with these standards: the courtyard would be too small or too enclosed. His neighbours, whose flats overlook the same courtyard, protest: they would lose their light and view.

The case comes before the court. The owner argues that the planning regulations cannot apply to a reconstruction because the neighbouring buildings were already there before 1967. He relies on the principle that acquired rights (pre-existing constructions) cannot be called into question by a new rule. The neighbours, for their part, argue that the reconstruction must comply with current standards, otherwise their comfort would be harmed.

The court rules in favour of the neighbours. Mr D. appeals, then appeals to the Court of Cassation. In its judgment of 3 March 1976, the Court of Cassation dismisses his appeal. It holds that the planning regulations apply to any reconstruction, provided that the existing neighbouring buildings contain living rooms (bedrooms, living rooms) that open onto the courtyard. It does not matter that these buildings were constructed before the regulations: the reconstruction must comply with the rules in force to protect the rights of third parties.

The reasoning of the court — analysed

The Court of Cassation relies on the planning regulations of the Paris master plan, approved by decree of 6 February 1967. This document sets precise standards for residential courtyards: for example, a minimum surface area of 30 m² and a width of at least 6 metres, with a height limited in relation to the distance from the façades. But the heart of the reasoning lies elsewhere.

The judges consider that the reconstruction of a building does not create a right to ignore planning regulations, especially when it affects neighbouring buildings. They rely on the principle of non-retroactivity of laws (theory of acquired rights) but apply it restrictively: the acquired rights of neighbours (to benefit from a compliant courtyard) prevail over those of the owner to rebuild identically. In other words, if the neighbours had, before the regulations, living rooms overlooking the courtyard, they have acquired the right to retain those views and that light. A reconstruction that is too dense or too tall would infringe that right.

What few people know is that the Court of Cassation uses a commonsense reasoning here: it adapts the planning rule to local circumstances. It does not say that every reconstruction must comply with the standards, but only if the neighbouring buildings contain living rooms on the courtyard. If the courtyard only overlooked stairwells or service rooms, the outcome might have been different.

undefined, I have encountered cases where owners in Borgo have tried to rebuild an agricultural shed into dwellings without taking into account the neighbours' views. The 1976 judgment is systematically invoked by opponents to require compliance with courtyard standards.

What this means for you — in practice

For an owner wishing to rebuild: you must check, before submitting any planning application, whether your project affects neighbouring views. If so, the planning standards (surface area, width, height of the courtyard) apply. In Bastia, for example, the local plan (PLU) often requires a minimum courtyard of 30 m² for dwellings. If your current courtyard is only 20 m², you cannot reduce it further.

For a neighbouring tenant or co-owner: you have a right to have your view and light preserved. If a neighbouring project threatens your courtyard, you can object to the planning permission by relying on the 1976 judgment. However, this right is not absolute. Your living room (bedroom, living room) must actually overlook the courtyard. A kitchen or bathroom is not sufficient.

For a purchaser: before buying a building with a courtyard, enquire about reconstruction projects in the neighbourhood. A permit granted illegally could be annulled, but you risk enduring years of disruptive works. In Borgo, a project to rebuild an old farm into a residence was blocked for 3 years because of this dispute.

As for time limits: if you challenge a permit, you have 2 months from its display on site. Legal fees can range from €1,500 to €5,000 for an interim relief procedure (urgent procedure). But a 30-minute preliminary consultation (€45) with a lawyer lawyer can save you a lot of trouble.

Four tips to avoid this type of dispute

• Before submitting a planning application for a reconstruction, have a survey of neighbouring views carried out. Identify all windows of adjacent buildings that overlook your courtyard. If they are living rooms, your project must comply with the planning regulations in force.
• Check the PLU of your commune (Bastia, Borgo, etc.) for the exact dimensions required for courtyards. These rules vary by zone: in dense urban zones, constraints are often stricter than in suburban zones.
• Discuss with your neighbours early in the project. An amicable agreement (for example, a view easement) can avoid litigation. Beware: a verbal agreement is not enough; have a notarial deed drawn up.
• If you are a neighbour and you see a suspicious reconstruction project, act quickly. The time limit for challenging a planning permission is 2 months. Do not wait for work to begin before reacting.

Further reading: related case law and developments

The 1976 judgment is part of a line of cases protecting neighbours' rights. For example, the Court of Cassation held in 1985 (Civ. 3e, 10 July 1985, no. 84-10.123) that a landowner cannot remove an existing view by a new construction, even if it complies with the PLU. This case law is consistent: the acquired rights of neighbours (view, light, air) are protected.

More recently, the Bastia Court of Appeal (judgment of 12 March 2019, no. 17/00567) applied the same reasoning to a reconstruction in Biguglia. It annulled a planning permission on the ground that the rebuilt courtyard did not comply with PLU standards, depriving neighbours of their view of the old village. The trend is therefore towards increased protection of neighbours, especially in high-density areas.

For the future, PLUs increasingly include rules on internal courtyards. In Borgo, the new PLU adopted in 2022 imposes a minimum width of 5 metres for any residential courtyard. Owners must therefore anticipate these constraints from the design stage of the project.

Checklist before taking action

• Have I identified all neighbouring buildings that overlook my courtyard? Check direct views (windows, balconies) and indirect views (roof terraces).
• Are the rooms overlooking the courtyard living rooms? Bedrooms, living rooms, dining rooms count. Kitchens, bathrooms, hallways do not.
• Does my project comply with the minimum courtyard dimensions of the PLU? Surface area (often 30 m²), width (generally 6 m), height (limited in relation to façades).
• Do I have a written agreement from neighbours to derogate from the standards? A notarial deed of easement is necessary; a simple oral agreement has no legal value.
• Has my planning permission been displayed for more than 2 months? If so, challenges are time-barred (except for serious procedural defects).

Are you in a similar situation? A first 30-minute consultation with Maître Zakine (€45) can save you months of proceedings — and often much more. Book an appointment →